<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>世界</title>
        <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
        <style>
            #mouted{
                position: fixed;
                left: 0;
                top: 0;
                width: 100%;
                height: 100%;
            }
        </style>
    </head>
    <body>
        <div id='mouted'></div>
    </body>
</html>